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author | Andy Wingo <wingo@pobox.com> | 2010-02-18 17:10:29 +0100 |
---|---|---|
committer | Andy Wingo <wingo@pobox.com> | 2010-02-18 22:15:43 +0100 |
commit | bb0229b51d53c10164f58cebbeeed85cd9dfe0b8 (patch) | |
tree | 4c63470d420dd669612828357481bfc518ddab47 /libguile/dynwind.c | |
parent | 27bd1deced05d096915d47c6ea46d3b22d692e19 (diff) | |
download | guile-bb0229b51d53c10164f58cebbeeed85cd9dfe0b8.tar.gz |
add with-fluids objects and primitive syntax
* libguile/tags.h (scm_tc7_with_fluids): Allocate a tc7 for
"with-fluids" objects, which will only live on the dynamic stack (wind
list), not in normal scheme-land.
* libguile/fluids.h (SCM_WITH_FLUIDS_P, SCM_WITH_FLUIDS_LEN)
(SCM_WITH_FLUIDS_NTH_FLUID, SCM_WITH_FLUIDS_NTH_VAL)
(SCM_WITH_FLUIDS_SET_NTH_VAL): Add some accessors.
* libguile/fluids.c (scm_i_make_with_fluids, scm_i_swap_with_fluids):
New internal functions.
(scm_c_with_fluids, scm_c_with_fluid): Push with-fluids objects on the
dynwind list, not winders.
* libguile/dynwind.c (scm_i_dowinds): Add cases for winding and
unwinding with-fluids objects.
* libguile/memoize.h (scm_sym_with_fluids, SCM_M_BEGIN): New public
data.
* libguile/memoize.c (scm_m_with_fluids): Define with-fluids as a
primitive syntax.
(unmemoize): Add with-fluids case.
* libguile/eval.c (eval):
* module/ice-9/eval.scm (primitive-eval): Add with-fluids cases.
* test-suite/tests/fluids.test
("fluids not modified if nonfluid passed to with-fluids"): Enable a
now-passing test.
Diffstat (limited to 'libguile/dynwind.c')
-rw-r--r-- | libguile/dynwind.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libguile/dynwind.c b/libguile/dynwind.c index 5eccb176f..18e38b995 100644 --- a/libguile/dynwind.c +++ b/libguile/dynwind.c @@ -257,6 +257,11 @@ scm_i_dowinds (SCM to, long delta, void (*turn_func) (void *), void *data) if (WINDER_REWIND_P (wind_elt)) WINDER_PROC (wind_elt) (WINDER_DATA (wind_elt)); } + else if (SCM_WITH_FLUIDS_P (wind_elt)) + { + scm_i_swap_with_fluids (wind_elt, + SCM_I_CURRENT_THREAD->dynamic_state); + } else { wind_key = SCM_CAR (wind_elt); @@ -294,6 +299,11 @@ scm_i_dowinds (SCM to, long delta, void (*turn_func) (void *), void *data) if (!WINDER_REWIND_P (wind_elt)) WINDER_PROC (wind_elt) (WINDER_DATA (wind_elt)); } + else if (SCM_WITH_FLUIDS_P (wind_elt)) + { + scm_i_swap_with_fluids (wind_elt, + SCM_I_CURRENT_THREAD->dynamic_state); + } else { wind_key = SCM_CAR (wind_elt); |